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Technical Brief

Numerical Post-Buckling Analysis of Mechanically Lined Corrosion Resistant Alloy Pipes

[+] Author and Article Information
Jiansha Dong, Firas Jarrar, Jamal Y. Sheikh-Ahmad

Department of Mechanical Engineering,
The Petroleum Institute,
Abu Dhabi 2533, United Arab Emirates

Fahrettin Ozturk

Department of Mechanical Engineering,
The Petroleum Institute,
Abu Dhabi 2533, United Arab Emirates
e-mail: fahrettin71@gmail.com

1Corresponding author.

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received November 22, 2016; final manuscript received October 10, 2017; published online November 30, 2017. Assoc. Editor: San Iyer.

J. Pressure Vessel Technol 140(1), 014502 (Nov 30, 2017) (4 pages) Paper No: PVT-16-1221; doi: 10.1115/1.4038225 History: Received November 22, 2016; Revised October 10, 2017

As an economical alternative to solid corrosion resistant alloy (CRA) and clad pipes, mechanically lined or sleeved CRA pipes are proven to be effective in the transport of corrosive fluids in oil and gas industry. A major issue with these pipes is that pressure drop or fluctuations may cause buckling of the liner, resulting in irreparable and costly damage. This issue should be resolved in order to fully implement this type of pipes in oil and gas industry. In this study, post-buckling analysis of liner pipe encased in carbon steel outer pipe is carried out following the hydraulic expansion manufacturing process. Commercially available abaqus finite element software is employed. The proposed model is partly verified with an analytical solution and other numerical results under the condition of no residual contact pressure. Results of the parametric study reveal that increasing the residual contact pressure and decreasing the magnitude of geometric imperfection can both contribute to enhancing the buckling resistance.

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References

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Figures

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Fig. 1

Imperfection types in the buckling analysis (a) global radial gap and (b) local wavy imperfection

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Fig. 2

True stress–strain curve of liner pipe material 316 L [14]

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Fig. 3

The flow chart of nonlinear buckling analysis of the mechanically lined CRA pipe

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Fig. 4

Schematic graph of nonlinear buckling analysis of mechanically lined CRA pipe

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Fig. 5

Results comparison of critical pressure with varying initial imperfections

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Fig. 6

Pressure–displacement curves of mechanically lined CRA pipe with different residual contact pressures (initial imperfection = 0.1 mm)

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Fig. 7

Effects of residual contact pressure on limit pressure and bifurcation pressure of mechanically lined CRA pipe (initial imperfection = 0.1 mm)

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Fig. 8

Pressure–displacement curves of mechanically lined CRA pipe with different initial imperfections (residual contact pressure = 1 MPa)

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Fig. 9

Effects of initial imperfection and residual contact pressure on bifurcation pressure of mechanically lined CRA pipe

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